Swansea's confidence received a timely boost in midweek as they salvaged a last-gasp point at Emirates Stadium thanks to Mathieu Flamini's 90th-minute own goal.
However, Garry Monk's side are now without a win in six games and are just five points clear of the relegation zone.
Beating fellow strugglers Norwich at the Liberty Stadium on Saturday would go a long way to securing their survival, and Michu believes it is just as important a match as the Capital One Cup final against Bradford City last season which delivered the first major trophy in the club's history.
"Saturday against Norwich is one we still need to win," the Spaniard told the South Wales Evening Post.
"We have had too many games without a win, we are at home, with our crowd, we need to win.
"It's a massive, massive game. For me it's like the game against Bradford at Wembley, a final we have to win."
Michu is in contention to face Norwich after making his first start since the middle of September in the draw with Arsenal.